May/Jun 1993 Table of Contents

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NOTE: Fine art illustrations are viewable only in the PDF of the full issue(downloadable at right).

COLUMNS
A Sense of Where You Are
Will the Pentagon share its navigational satellites with the rest of us?
DAVID M. TRALLI

FEATURES
Small Wonder
Delicate and protean, the cell's "skeleton" shapes life far beyond the cell wall
ALICE B. FULTON

Cover Story • Beyond Walden
Unpublished scientific writings of a poet of nature
HENRY DAVID THOREAU

Bubble, Bubble
Jean Taylor and the mathematics of minimal surfaces
ROBERT KANIGEL

REVIEWS
The Death of a Hero
Challenging the myth of Captain Cook, enlightened explorer
AMY BURCE

Books in Brief • The Armchair Voyager
LAURENCE A. MARSCHALL

DEPARTMENTS
Initial Conditions • Editor's Notebook

Peer Review
Letters from Readers

Quanta
Recent Sightings

Studies From Life
X-ray Impresario

Strange Matter
The Nuclear-Powered Car
ROZ CHAST

May/Jun 1993

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